Binder



F.H.CRUMP. BINDER.

APPLICATION FILED OCT. 29, 1918.

1,303,540. 1 Patented May13, 1919.

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ATTORNEYS mr NORRIS PEYERS co, mabmuma. msm/wmu. n. c,

FRANK HGWARD CRUMP, 0F LOS ANGELES, CALIFORNIA.

BINDER.

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Specification of Letters Patent:

Patented May 13, 1919.

Application filed October 29, 1918. Serial No. 280,178.

To all whom it may concern:

Be it known that I, FRANK H. CRUlfIP, a citizen of the United States, and a resldent of Los Angeles, county of Los Angeles, and State of California, have invented certain new and useful Improvements in B nders, of which the following is a specification.

This invention relates to loose leaf b nders and more particularly to transfer b1nders in which loose leaves are permanently stored. Such binders are ordinarily constructed with either stiff or flexible posts. The stiff posts are secured to the bottom cover plate, the top cover plate being provided with an adjustable clamping member, or else the posts are threaded at one end, the two covers being held together by a nut screwed down over the threaded end of the post. Other binders are provided with flexible U-shaped wires, flat or round, passed through both covers and bent over to hold the two covers together. Both the stiff posts and the flexible posts extend above the top cover, are unsightly, prevent the records being stored neatly and economically and scratch or mar the furniture.

This inventionaims to provide a binder which will avoid the necessity of an adjustable clamping member or an unsightly threaded post with a nut or to bend a flexible post to secure the proper adJustment:

Another aim is to provide metal b nding strips which may be punched to recelve the clamping member after the plates have been bound into the cover thereby facilltatmg the manufacture of the binder- Another aim is to provide a binder with no protruding posts or clamping members which will mar the furniture.

Another aim is to provide a binding device with which a record of any thickness may be-bound and which will present the appearance of a sewed book.

Another object is to provlde a slmple means for holding the posts in the bottom cover.

For a full understanding of the invention, reference is to be had to the following description and the accompanying drawings, in which- Figure 1 is a perspective view of the binder embodying the present invent1on,

Fig. 2 is a vertical longitudinal section view therethrough taken in a plane with one end of the U-shaped wire,

ings conformable to the shape Fig. 3 is a side view of th U-shaped wire before being twisted, 1

Fig. 4 is a similar view of a portion of the U-wire after being twisted at the top and bottom,

Fig. 5 is a vertical section through a slightly modified form.

orresponding and like parts are referred to in the following description and. indicated in all views of the accompanying drawings by the same reference characters.

Referring now to these figures, my improved binder contemplates the use of a back 10 and a cover 11, between which the sheets 12 to be bound are placed, each of the said back and cover bein flexibly connected by the covering material at 12, with a binder strip through which the fastening members, securing the bound sheets 12, are extended.

The binding or clamping members comprisingmy invention are each in the form of a fiat U-shaped wire 13, the body of which extends along the lower surface of the back of the binder within a groove formed by the corrugated metal binder strip 14: of the back 10. This metal binder strip 14 has openings through which the ex tensions 15 of the U-wire project as clearly seen by reference to Figs- 1 and 2, which extensions may be of various lengths, and either removable with respect to the back strip 14 or secured in connection therewith by twisting the major portions of the extensions 15 at right angles to lock the same in connection with the back strip, as clearly seen in Fig. 2.

I Thebinder strip of the cover 11 has a metal plate 16 beneath a wooden, cardboard, or other strip '17, the plate 16 having open of the extensions 15 of the clamping members, and the strip 17 having enlarged openings within which the extremities 18 of said extensions may be twisted at or about right angles in order to lock the parts in connected relation. The extensions 15 of the clamping members are preferably cut off below the level of the upper surface of the strip 17 at the same time the extremity 18 is twisted, and it is to be observed that this structure not only admits of the clamping of any desired number of sheets 12 within a wide range, but obviates all projecting parts as in, the majority of binders now in use, which comeinto contact with and scratch, mar or otherwise destroy the appearance of .a desk or other supporting surface upon which the binder is used.

The extensions 15 of the clamping 11161111 of plain cardboard back and cover binder strips '19 and 20 adjacent the openings through which strips are washers 21 and 22 having openings through which the extensions 15? are projected. .The washer 22 may for instance be cup-shaped or planoconcave, as shown, in either instance, providing for the twisting of the extremities 23 of the extensions'15 within the'limits of the washer so as to avoid the projecting twisted raw edge of the extension.

The method of operation is as follows: Having placed the sheets to be bound over the freeends of the U wire, the top cover is also slipped over and pressed down hard and with wire nippers the wire is twisted at an angle, preferably a right angle, and subsequently cut off by the same implement. The head thus formed prevents the top cover coming off and the reinforcement above the plate provides a recess for the head which prevents it protruding above the cover. The

binder maythen be turned over and moved freely over a desk without marring it and may be stored as neatly and economically as a sewed book.

I claim: j

1. In a binder, spaced leaf-confining members, a Hat U-shap ed resilient wire carried by and projecting through one of said mem bers, the other member being provided with apertured means having openings conforming to the shape of and receiving the free ends of the U wire, said ends being twisted at their extremities and forming locking heads of greater width than the width of the said openings.

2. In a binder, spaced leaf-confining me1nbers, a flat U-shaped resilient wire carried by one member through openings therein, the extension of the wires being twisted laterally at right angles thereby securing the wires to said member, the other member being provided with openings formed at right angles to the openings in the first member and into which the free ends of the wires are received, said ends being twisted at an angle and forming heads of a width greater than the width of the openings.

3. A binder including a back and cover having leaf confining members of which the member of the back is formed of corrugated metal providing grooves, the said leaf confining members having slottcd openings, and a clamping member formed of a Hat U shaped wire seated along and within one of the grooves of the leaf confining member of the back, the extensions of which wire are mounted through the openings of the leaf confining members and twisted to secure the parts in locked relation.

4. A binder having a back and a cover provided with leaf confining n'lembers, one of which consists of a corrugated metal strip and the other of which has a metal strip and a covering strip overlying said metal strip, said metal strips of the two leaf confining members having slotted openings, and a clamping member consisting of a flat ,U shaped wire disposed along and within one of the grooves of the corrugated strip, and having its extensions projecting through the openings of the two metal strips, the ex tremities of said extensions being twisted to secure the parts in locked relation, and said covering strip having openings forming recesses within which the twisted extremities of the wire are housed.

FRANK HOWARD CRUMP.

WVitnesses NELLIE TIERNAN, JOHN N. REY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, 17.0. 

